Precalculus Examples

,
Subtract from both sides of the equation.
Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .
Solve for in the second equation.
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Simplify the left side.
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Simplify each term.
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Apply the distributive property.
Multiply by .
Multiply by .
Subtract from .
Move all terms not containing to the right side of the equation.
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Subtract from both sides of the equation.
Subtract from .
Divide each term by and simplify.
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Divide each term in by .
Simplify the left side of the equation by cancelling the common factors.
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Reduce the expression by cancelling the common factors.
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Factor out of .
Move the negative one from the denominator of .
Rewrite as .
Move the negative in front of the fraction.
Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .
Simplify .
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Simplify .
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Multiply by .
Multiply by .
To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Combine.
Multiply by .
Combine the numerators over the common denominator.
Simplify the numerator.
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Multiply by .
Add and .
The solution to the system of equations can be represented as a point.
The result can be shown in multiple forms.
Point Form:
Equation Form:
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